Phenyx Pro Wireless Microphone System, 4 Channel VHF Wireless Mics, w/ 4 Handheld Dynamic Microphones, Metal Receiver, Long Range, Microphone for Singing, Karaoke, Church (PTV-2000A). Recommended uses for product-Singing. Special feature-Plug and Play. WIRELESS OPERATION: Quad channel VHF wireless microphone system to enjoy cable-free operation. Metal build receiver for durability and high quality plastics component build handheld mics for light-weight feature. Individual volume control to precisely balance and adjust vocal sound. Green LED lights above each volume knob enable users visualize the pair up between receiver and transmitters. Stable fixed VHF signal ensures unsurpassed interference-free distortion-free operation, operating distance is up to 160ft line of sight in open space. Perfect for meetings, public speaking, interview, group karaoke, broadcasting, church, and outdoor events. VERSATILE USE: Easy setup wireless microphone system and convenient operation with ON/MUTE/OFF switch on both cordless mic and bodypack. Metal receiver features 2 XLR outputs and one 1/4” audio output jack to connect to your amplifier, mixer, or other PA system. BOX CONTENTS: 1 x 4-channel wireless mic receiver, 4 x handheld wireless mics, 1 x 1/4” audio cable, 1 x power adapter, 1 x user manual, 8 x AA battery for 16hrs long hour use, 1 x 6.5mm to 3.5mm jack adapter. Capture Your Voice Properly. Keep your microphone about 1-2 inches (3-5 cm) away from your mouth for optimal sound capture. Hold Your Mic Properly. Do not cover the bottom of the microphone where the signal is sent with your hands to avoid the signal block. This unit has no Bluetooth function to be compatible with other electronics. Ensure Line of Sight. Operate the system in the proper range and keep the receiver’s antennas upward for better wireless performance. Clean up metals in the line of sight. Karaoke With Professional Setup. 1? Use the XLR cable (NOT INCLUDED) to connect the output jack of the PTV-2000 receiver and the input jack of the audio mixer. 2? Use RCA male to RCA male cables (NOT INCLUDED) to connect the output jack of the mixer and the input jack of the audio amplifier. 3? Use RCA male to RCA male cables (NOT INCLUDED) to connect the output jack of the audio amplifier and the input of the speaker.